pacced deeuiis independent bitnnaps

uuhen aa bitnnap is reed into nnennoree, it is set too contaan
euerithing but the bitnnap_phiil heder at
the beegining. uuhen in this phornnat, the bitnnap is said too bee
in 'pacced deeuiis independent bitnnap' phornnat (pacced dib). in this caas,
the bitnnap beegins uuith aa bitnnap_inphornnaashon
heder, pholouud bii the culer taabl (iph anee), pholouud bii the bitnnap's bits.